High Current Pins

For high current applications from 5A up to max. 13A the 4P design with cap is used. This additional cap that stabilizes the current flow. Thickened walls decrease resistance and keep it cool. A special inner structure increases the contact area.

Dimensions: mm | SF = Spring Force: g ±20%

Almost all spring contacts can be supplied with a mounting cap. We will to send you the data sheets on request.

Rolling Type

While the regular pogo pin is designed for vertical movement, we developed a special design for lateral movement. It is based on the bias tail design. The bias tail of plunger creates lateral force and better contact.The matting side can be a circular track for a 360° strong rotation. It’s a best solution for product display, rotating camera and robot, etc.

Screw Type

Electronic devices are getting smaller, faster and more efficient. This miniaturization places the highest demands on the production technology, because more and more functions have to be integrated into the small devices. The new spring contact design with integrated screw thread on the piston helps meet these requirements.

In addition to the function as a screw, also power and signal currents can be transmitted.

The screw thread can be integrated with all custom spring contacts with a piston length from 3.5mm.

The rated current is 1A and the contact resistance is 200 μΩ. The spring contacts are coated with at least 5 μin gold and have a lifetime of at least 10,000 cycles.

Federkontakt mit Schraubgewinde

Advantages

long life span

customized solutions

adjustable and measurable spring force

small grid size

SMT assembly possible

good performance in high frequency applications

RoHs compliant and halogen-free

Application

Application

In the connectors’ world, the Pogo-pin connector is a special type of contact technology. In the past few years, this reliable technology has been accepted by many world-class customers and applied for a hundred different kinds of electronic products, such as mobile phones, GPS devices, car stereos, notebooks, TV game peripherals, LED road lamps, hearing aids, mobile radios, etc.

Construction

Construction

Aufbau eines Federkontaktes

The pogo pin connector consists of 3 parts – Plunger, Spring and Barrel (based on cumstomer’s need, we can match with housing an cap)

Design

Design

Design Varianten von Federkontakten

Back Drill Design The drilled tail makes extra space for spring and creates a shorter pogo pin. For smaller designs, the so-called Back Drill Design is used. In order to achieve the customer-specific desired spring force, the spring used in this design is longer than the hollow plunger.

Pin Length: < 3.5 mm

Current: 1 A

Bias Tail The bias tail of plunger creates lateral force and better contact. To ensure a 100% contact of the plunger with the barrel, the bias design is used. In this design, the plunger is bevelled at its end at an angle of up to 18 ° and inserted into the pen case. As a result, a 100% contact of the plunger with the barrel is ensured upon actuation of the spring contact pin. This significantly reduces the signal disturbance due to vibrations. The bias design is applied to almost all spring contact pins from a length of 3.5mm

Pin Length: ≈ 3.5 mm

Current: ~ 2A

4P Design With high current carrying capacity requirements (> 3A) and vibration resistance, the bias design is complemented by the 4P design. If the plunger and the barrel of a spring contact pin do not connect properly at high currents due to insufficient lateral forces, the spring could burn out. To avoid this, the previous three components of a spring contact pin (Plunger, Spring and Barrel) are complemented by a stainless steel ball as a fourth component in the 4P design. This ball is integrated between the plunger and the compression spring. The flow of current is conducted to the sleeve via the stainless steel ball and the signal disturbance as a result of vibrations is significantly reduced. As an alternative to the stainless steel ball, a cap can also be used in the 4P design

Current: 3~5 A

High-Current Design For high current applications from 5A up to max. 13A, the 4P design with cap is used. The barrel is additionally reinforced. In addition, a special structure in the interior of the spring contact serves to increase the contact area. The service life of the high-current spring contacts is at least 10,000 cycles. The sizes are in the standard range between 5.4 – 15.0mm in length.

Screw-Design

Screw Pin Federkontakt mit Schraubgewinde

Electronic devices are getting smaller, faster and more efficient. This miniaturization places the highest demands on the production technology, because more and more functions have to be integrated into the small devices. The new spring contact design with integrated screw thread on the barrel helps to meet these requirements. In addition to the function as a screw, also power and signal currents can be transmitted. The screw thread can be integrated with all custom spring contacts with a piston length from 3.5mm.

Plating Material

Plating

The barrel is a deep-draw tube and usually needs to be plated twice. First of all, it will be nickel-plated with a normal thickness of 1 to 2 microns. Secondly, the gold plating is the most common final layer with a thickness from 0.1 to 1 micron. Gold is the preferred plating because it provides excellent conductivity and a high resistance to corrosion.

We also offer a plating range from nickel alone, in cases where extreme economy is desired, to a gold plating. Alternative plating includes rhodium, palladium and other noble metals. Basically, different plating is applied for different product applications.

Plating

Hardness (HV)

Function (Color)

Gold

78 – 86

Low resistance

Super AP*

400

Superior corrosion resistance, low electrical resistance (silver)

Nickel

150 – 200

Low cost, corrosion resistant (silver)

Palladium-Nickel

330 – 380

Improved signal transmission (silver)

Red Brass (CuSnZn)

600

Replace Nickel (silver)

Palladium Cobalt

450 – 600

Replace Pd-Ni (silver)

Palladium Cobalt

600 – 800

Black color requirement

Super AP COATING

The Super AP coating is extremely resistant to electrolytic or galvanic corrosion while maintaining very low resistance. This makes it particularly suitable for all electrical applications. Compared to a gold coating, the Super AP coating is:

2 x more resistant to salt water

5 x resistant to transpiration

30 x more resistant to electrolysis

Nickel-Free

Pogo Pins for automatic assembly

On customer request, we can supply almost all spring contacts cost-effectively with fitting caps. And this for individual pins as well as for complete pogo pin connectors. The spring contacts are supplied on a roll and are easy to use in automated PCB assembly.

Pogo Pin Connectors

We offer a connector housing system for spring contacts. This modular housing is available from 1-20 columns and up to 4 rows. Its smart design and simple structure makes it very cost effective even at small volumes.

We also develope customized pogo pin connectors. Due tot he wide range of pogo pins, we can develope: especially small connectors, waterproof solutions (IPX6 / IPX7), magnetic connectors and special solutions for high current applications. We also offer the cost-effective production of complete assemblies with connectors and cable assemblies.

Waterproof Pogo Pin Connectors

A magnetic connector for comfortable using experience. It provides excellent HF signal transmission, fast charging of power and high speed data transmission. in addition, magnetic connector not only has good looking for ID design, but also good solution for preventing your laptop or cellphone from dropping when power cord of these items are pulled or trigged by users.

Magnetic Connector

We also offer customized magnetic connectors. The plug is made of spring contact probes and a magnetic connection system. By implementing the spring contact pins, the contact is not generated by inserting the pins into a socket but already during the probing of the contact pins with the contact points. The contact points are soldered in the device with the board. Advantage of this technique is the high reliability at a very high number of cycles of up to 10,000 re fortifications. The strong permanent magnet consists of a neodymium iron boron alloy (NdFeB) and ensures rapid shock and vibration resistant, and self-guiding connection or simple solution of plug and device… read more >>